Tennis teaching device



FIG. 1 is a front view of a tennis teaching device showing my newdesign. The tennis ball holders are shown fragmentarily and swung to theside for clarity;

FIG. 2 is a rear view of FIG. 1;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof.

The ornamental design for a tennis teaching device, substantially asshown and described.